By Al Novack

UPPER DUBLIN, Pa. (CBS) — Authorities say one man was killed Tuesday night after a multi-vehicle accident in Upper Dublin Township, Montgomery County.

Three motorcycles, a car and an SUV were involved in the wreck at about 11:30 p.m.

Police say one motorcycle operator, an unidentified man, was killed. Two other men on motorcycles were injured and rushed to the hospital in unknown conditions.

Welsh Road at Dillon Road was closed for several hours as investigators attempted to re-construct what may have happened.

The road reopened at about 6:30 a.m.

The deadly crash remains under police investigation.